B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
70%
70% -- share of consumers opening email based on subject line alone for Consumers (email recipients) (2025)
70% of consumers report opening emails based on the subject line alone.
- Unattributed pull-quote in blog post; primary source methodology not provided.
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Lighthouse Research Team
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Source verified
Evidence graded
Value
70%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
nureply.com
Primary
Tier C
https://nureply.com/blog/catchy-subject-lines-for-email-campaigns-tips-and-examples-for-success/ ↗
Source Article
Catchy Subject Lines for Email Campaigns: Tips and Examples for Success
Catchy Subject Lines for Email Campaigns: Tips and Examples for Success
Quick Answer
Catchy subject lines that can enhance your email campaign engagement include short phrases like “Quick Question” or intriguing formats such as “10 Mistakes That Keep Talented Copywriters Poor.” These examples levera…
Original Research
nureply.com
· Original study ↗
Methodology
Unattributed statistic highlighted as a pull-quote in the blog; original research not identified in the text.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Consumers (email recipients): 70% share of consumers opening email based on subject line alone. Source: nureply.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/consumers-open-emails-subject-line-alone-70
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<blockquote cite="https://lighthousedata.io/data/consumers-open-emails-subject-line-alone-70" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70%</strong> -- share of consumers opening email based on subject line alone for Consumers (email recipients)<br><small>Source: nureply.com (2025) · <a href="https://lighthousedata.io/data/consumers-open-emails-subject-line-alone-70" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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